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WAEC Mathematics 2015 Question 37

Question 37

Algebraic Expressions

Simplify: (3x − y)/xy − (2x + 3y)/2xy + ½

  1. A.(4x + 5y − xy)/2xy
  2. B.(5x − 4x + xy)/2xy
  3. C.(5x + 4x − xy)/2xy
  4. D.(4x − 5y + xy)/2xy
Show the answer and explanation

Answer: D ((4x − 5y + xy)/2xy)

Explanation

Over 2xy: (6x − 2y − 2x − 3y + xy)/2xy = (4x − 5y + xy)/2xy.